Hello! I am here with a few geometry questions today.

What quadrant would it be in?

When you answer this question please be sure to explain your answer and show work.
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The difference between tax advoidance and tax evasion

Acircle has a radius of 5/6 units and is centered at (3.6, 7.8) write the equation of this circle

An automobile assembly line operation has a scheduled mean completion time, μ, of 12 minutes. the standard deviation of completion times is 1.6 minutes. it is claimed that, under new management, the mean completion time has decreased. to test this claim, a random sample of 33 completion times under new management was taken. the sample had a mean of 11.2 minutes. assume that the population is normally distributed. can we support, at the 0.05 level of significance, the claim that the mean completion time has decreased under new management? assume that the standard deviation of completion times has not changed.